1.3 Complete each of the following sentences after the model with the word or phrase in brackets.-|||-Make changes or additions where necessary-|||-Model:-|||-The machines __-|||-throughout old parts of the city, tucked into narrow alleyways.-|||-(scatter)-|||-1 These ancient buildings __ the public this month because they are-|||-under repair.(be open to)-|||-2 Fitness is __ in living a happy life,but many people fail to take good-|||-care of it.(element)-|||-3 The UN __ promoting understanding i the international communi (play a role in)-|||-4 Politicians tend to make big promises __ (campaign)-|||-5 The champion boxer fought bravely to defend his title,but was finally __ by-|||-a knockout blow.(lay low)-|||-6 It is important for parents to train their baby __ toys everywhere.(scatter)-|||-7 School children are no longer encouraged to __ friends after school.(hang-|||-around)-|||-8 It is natural for a foreigner to speak the language __ an accent (口音).-|||-(trace)-|||-9 PM 2.5 are fine particles __ that pose hazards to the health of humans.(suspend)-|||-10 The two countries __ the boundaries (边界)of their coastal waters.(dispute)